Honda CRF450R 2011 User Manual

Additional Maintenance Procedures
Servicing Your Honda 111
Additional Maintenance Procedures
Refer to Safety Precautions on page 27.
1. With your CRF on a box or optional workstand
(front wheel elevated), turn the handlebar to
the right and left to check for roughness in the
steering head bearings.
2. Stand in front of your CRF, grab the fork (at
the axle), look at the steering head, and push
the fork in and out (toward the engine) to check
for play in the steering head bearings.
If any roughness or play is felt, but you do not
see any movement in the steering head, the
fork bushings may be worn. Refer to an official
Honda Shop Manual for replacement or
adjustment procedures, or see your Honda
dealer.
1. Check the handlebar (1) for bends or cracks.
2. Check that the handlebar has not moved from
its proper position (the end of the right
handlebar holders (2) is aligned with the paint
mark (3)).
3. Check the torque of the handlebar upper holder
bolts (4):
22 N·m (2.2 kgf·m, 16 lbf·ft)
Tighten the front bolts first.
Periodically, disconnect the throttle and clutch
cables at their upper ends. Thoroughly lubricate
the cable pivot points with a commercially
available cable lubricant. If the clutch lever and
throttle operation is not smooth, replace the cable.
Be sure the throttle returns freely from fully open
to fully closed automatically, in all steering
positions.
Steering Head Bearing Inspection
Handlebar Inspection
(1) handlebar
(2) right handlebar holders
(3) paint mark
(4) handlebar upper holder bolts
(1)
(4)
(3)
(4)
(2)
Control Cables
CRF450R.book Page 111 Thursday, July 8, 2010 9:34 AM

Honda CRF450R 2011 Specifications

General

Engine Type	449cc liquid-cooled single-cylinder four-stroke
Bore x Stroke	96.0mm x 62.1mm
Compression Ratio	12.0:1
Transmission	Close-ratio five-speed
Final Drive	#520 chain; 13T/48T
Front Brake	Single 240mm disc with twin-piston caliper
Rear Brake	Single 240mm disc
Front Tire	80/100-21
Rear Tire	120/80-19
Trail	114mm (4.5 inches)
Induction	PGM-FI, 46mm throttle body
Front Suspension	48mm inverted with rebound and compression damping adjustability; 12.2 inches travel
Rear Suspension	Pro-Link single shock with rebound and compression damping adjustability; 12.4 inches of travel
Wheelbase	58.7 inches
Seat Height	37.6 inches
Fuel Capacity	1.5 gallons